﻿using System;
using System.Text;
using System.Collections.Generic;
using System.Linq;
using Microsoft.VisualStudio.TestTools.UnitTesting;

namespace EpiMapit.Tests
{
    /// <summary>
    /// Summary description for UnitTest1
    /// </summary>
    [TestClass]
    public class PieUrlGeneratorFixture
    {
        private CaseSet caseSet;
        private PieUrlGenerator generator;

        private TestContext testContextInstance;

        /// <summary>
        ///Gets or sets the test context which provides
        ///information about and functionality for the current test run.
        ///</summary>
        public TestContext TestContext
        {
            get
            {
                return testContextInstance;
            }
            set
            {
                testContextInstance = value;
            }
        }

        #region Additional test attributes
        //
        // You can use the following additional attributes as you write your tests:
        //
        // Use ClassInitialize to run code before running the first test in the class
        // [ClassInitialize()]
        // public static void MyClassInitialize(TestContext testContext) { }
        //
        // Use ClassCleanup to run code after all tests in a class have run
        // [ClassCleanup()]
        // public static void MyClassCleanup() { }
        //
        // Use TestInitialize to run code before running each test 
        [TestInitialize()]
        public void TestInitialize() 
        {
            caseSet = new CaseSet();
            generator = new PieUrlGenerator();
        }
        //
        // Use TestCleanup to run code after each test has run
        // [TestCleanup()]
        // public void MyTestCleanup() { }
        //
        #endregion

        [TestMethod]
        public void TestEmptyCases()
        {

            var result = PieUrlGenerator.GetPieChartUrl(100, 100, caseSet);
            var expected = "http://chart.apis.google.com/chart?cht=p&chs=100x100&chd=t:";

            Assert.AreEqual(expected, result, "Url does not match");
        }

        [TestMethod]
        public void TestNonEmptyDiscardingZerosAndWithScaling()
        {
            for (int i = 1; i < 5; i++)
            {
                if (i != 2)
                    caseSet.Levels.Add("label " + i, 50 * i + 100);
                else
                    caseSet.Levels.Add("label " + i, 0);
            }
            var result = PieUrlGenerator.GetPieChartUrl(400, 200, caseSet);
            var expected = "http://chart.apis.google.com/chart?cht=p&chs=400x200&chd=t:150,250,300&chdl=label 1|label 3|label 4&chds=300&chco="+
                ControlConstants.InnerRingColor+","+ControlConstants.FirstRingColor+","+ControlConstants.SecondRingColor+","+ControlConstants.ThirdRingColor;

            Assert.AreEqual(expected, result, "Url does not match");
        }
    }
}
